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Antibodies to Plasmodium falciparum merozoite surface protein-1p19 malaria vaccine candidate induce antibody-dependent respiratory burst in human neutrophils
- Source :
- Malaria Journal
- Publication Year :
- 2015
- Publisher :
- Springer Science and Business Media LLC, 2015.
-
Abstract
- Background Identification of plasmodial antigens targeted by protective immune mechanisms is important for malaria vaccine development. Among functional assays, the neutrophil antibody-dependent respiratory burst (ADRB) induced by opsonized Plasmodium falciparum merozoites has been correlated with acquired immunity to clinical malaria in endemic areas, but the target merozoite antigens are unknown. Here, the contribution of antibodies to the conserved C-terminal domain of the P. falciparum merozoite surface protein-1 (PfMSP1p19) in mediating ADRB was investigated in sera from individuals living in two Senegalese villages with differing malaria endemicity. Methods Anti-PfMSP1p19 antibody levels in sera from 233 villagers were investigated and the involvement of anti-PfMSP1p19 antibodies in ADRB was explored in a subset of samples using (1) isogenic P. falciparum parasite clones expressing P. falciparum or Plasmodium chabaudi MSP1p19; (2) PfMSP1p19-coated plaque ADRB; and, (3) ADRB triggering using sera depleted from PfMSP1p19 antibodies by absorption onto the baculovirus recombinant antigen. Results ADRB activity correlated with anti-PfMSP1p19 IgG levels (P
- Subjects :
- Male
Chemiluminescence
Neutrophils
Antibodies, Protozoan
Plasmodium chabaudi
0302 clinical medicine
Longitudinal Studies
Child
Merozoite Surface Protein 1
Respiratory Burst
Aged, 80 and over
0303 health sciences
biology
Malaria vaccine
Middle Aged
Acquired immune system
Senegal
3. Good health
Infectious Diseases
Child, Preschool
ELISA
Female
Antibody
Adult
Adolescent
IgG
Plasmodium falciparum
030231 tropical medicine
Young Adult
03 medical and health sciences
Antigen
parasitic diseases
medicine
Humans
Functional assay
Opsonin
Aged
030304 developmental biology
Research
ADRB
medicine.disease
biology.organism_classification
Virology
Malaria
Cross-Sectional Studies
Immunology
biology.protein
Parasitology
MSP1p19
Subjects
Details
- ISSN :
- 14752875
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Malaria Journal
- Accession number :
- edsair.doi.dedup.....72b88fe9b11926dfa7d7d0499fd49ff1